Street sweeper



FIG. 1 is a top, front and side perspective view of a street sweeper showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side perspective view thereof; and,

FIG. 4 is a top, front and left side perspective view thereof.

The street sweeper is shown without the shovel in FIGS. 3 and 4 for clarity of illustration. 

The ornamental design for a street sweeper, as shown and described. 